Exhibit 31.1
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             CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER


I, GERHARD J. NEUMIAER, certify that:

1.  I have reviewed this Quarterly Report on Form 10-Q of Ecology and
Environment, Inc.;

2.  Based on my knowledge, this Quarterly Report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to
make the statements made, in light of the circumstances under which such
statements were made, not misleading with respect to the period covered by
this Quarterly Report.

3.  Based on my knowledge, the financial statements, and other financial
information included in this Quarterly Report, fairly present in all material
respects the financial condition, result of operation and cash flows of the
Registrant as of, and for, the periods presented in this Quarterly Report.

4.  The registrant's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined
in Exchange Act Rules 13a-14 and 15d-14) for the registrant and we have:

    a) designed such disclosure controls and procedures to ensure that
material information relating to the registrant, including its consolidated
subsidiaries, is made known to us by others within those entities,
particularly during the period in which this Quarterly Report is being
prepared;

    b) evaluated the effectiveness of the registrant's disclosure controls
and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the
period covered by this Quarterly Report based on such evaluation;

    c) disclosed in this Quarterly Report any change in the registrant's
internal control over financial reporting that occurred during the
registrant's most recent fiscal quarter (the registrant's fourth fiscal
quarter in the case of an Quarterly Report) that has materially affected, or
is reasonable likely to materially affect, the registrant's internal control
over financial reporting; and

5.  The registrant's other certifying officers and I have disclosed, based on
our most recent evaluation, to the registrant's auditors and the audit
committee of registrant's board of directors (or persons performing the
equivalent function);

    a) all significant deficiencies in the design or operation of internal
controls which could adversely affect the registrant's ability to record,
process, summarize and report financial data and have identified for the
registrant's auditors any material weaknesses in internal controls; and

    b) any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant's internal controls.


                                            ECOLOGY AND ENVIRONMENT, INC.

Dated:  December 13, 2005                   /s/ GERHARD J. NEUMAIER
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                                            GERHARD J. NEUMAIER
                                            PRESIDENT